Tracking contact quality to vital signs measurement sensors
First Claim
1. A method for determining measurement quality of one or more measurements from one or more sensors, comprising:
- obtaining, at a processor, a first amplification gain for a first signal generated by the one or more sensors, wherein the one or more sensors are positioned on a subject'"'"'s body, and wherein the first amplification gain is for amplifying or reducing the first signal to within a first pre-determined level at a first time;
determining, at the processor, a second amplification gain for a second signal generated by the one or more sensors, wherein the second amplification gain is for amplifying or reducing the second signal to within a second pre-determined level at a second time after the first time; and
generating, at the processor, a contact quality value of a contact between the one or more sensors and the subject'"'"'s body based on a degree of change between the first amplification gain and the second amplification gain with respect to time.
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Accused Products
Abstract
Various embodiments include a variety of sensors, such as a pulse oximeter, configured to track a dynamic component of a sensor and take an action based on a characteristic of the dynamic component. Some embodiments may include determining a gain applied to a signal of the sensor, determining whether the gain is discontinuous, and indicating that a sensor measurement associated with the signal is low quality in response to determining that the gain applied is discontinuous. Some embodiments may include determining a peak-to-peak voltage of an output of a sensor, determining whether the peak-to-peak voltage is within an acceptable peak-to-peak voltage range, and indicating that a measurement associated with the received signal is low quality in response to determining that the peak-to-peak voltage is outside the acceptable peak-to-peak voltage range.
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Citations
25 Claims
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1. A method for determining measurement quality of one or more measurements from one or more sensors, comprising:
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obtaining, at a processor, a first amplification gain for a first signal generated by the one or more sensors, wherein the one or more sensors are positioned on a subject'"'"'s body, and wherein the first amplification gain is for amplifying or reducing the first signal to within a first pre-determined level at a first time; determining, at the processor, a second amplification gain for a second signal generated by the one or more sensors, wherein the second amplification gain is for amplifying or reducing the second signal to within a second pre-determined level at a second time after the first time; and generating, at the processor, a contact quality value of a contact between the one or more sensors and the subject'"'"'s body based on a degree of change between the first amplification gain and the second amplification gain with respect to time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device, comprising:
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one or more sensors; and a processor coupled to the one or more sensors, wherein the processor is configured to; obtain a first amplification gain for a first signal generated by the one or more sensors, wherein the one or more sensors are positioned on a subject'"'"'s body, the first amplification gain being for amplifying the first signal to within a first pre-determined level at a first time; determine a second amplification gain for a second signal generated by the one or more sensors, the second amplification gain being for amplifying the first signal to within a first pre-determined level at a second time after the first time; and generate a contact quality value of a contact between the one or more sensors and the subject'"'"'s body based on a degree of change between of the first amplification gain and the second amplification gain with respect to time. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A device, comprising:
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one or more sensors configured to be coupled to a subject'"'"'s body and, when coupled to the subject'"'"'s body, output a signal indicative of a physiological property of the subject, wherein the one or more sensors include; a generator configured to generate a respective stimulus to the subject'"'"'s body; and a transducer configured to receive the stimulus subsequent to the stimulus being modified by the subject'"'"'s body and output a signal indicative of the modified stimulus; and a processor coupled to the one or more sensors, wherein the processor is configured to; obtain a first amplification gain value indicative of an amplification gain applied, at first time, to one of a first signal transmitted to the generator corresponding to generating of the stimulus or a second signal received from the transducer corresponding to the transducer receiving the modified stimulus, the first amplification gain being for amplifying or reducing the first signal or the second signal to within a first pre-determined level at the first time; determine a second amplification gain value of an amplification gain applied, at a second time after the first time, to one of the first signal or the second signal, the second amplification gain being for amplifying or reducing the first signal or the second signal to within a second pre-determined level at the second time; and generate a contact quality value of a contact between the one or more sensors and the subject'"'"'s body based on a degree of change between the first amplification gain value and the second amplification gain value with respect to time. - View Dependent Claims (22, 23, 24, 25)
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Specification